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3 July, 15:14

The measure of an angle is 172.2°. what is the measure of a supplementary angle?

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  1. 3 July, 18:42
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    Supplementary angles are when they add two 180 degrees. Therefore, the formula for this is:

    172.2° + x = 180°

    180 - 172.2 = x

    x = 7.8°
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